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Round|Natural|IGI

1.53ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 670479108

Shape and cutting style on the report: Round brilliant

Certificate IGI 670479108

Diamond specifications and retailer prices

From $4,621 USD
As of November 1, 2026
Save $4,241 USD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,862 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670479108. Listed at 14 retailers as of October 30, 2026, with prices from $4,621 to $8,862, a $4,241 spread on the same certified stone. NZ Jewellers lists it at $8,862. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.53
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 670479108
Dimensions7.55 × 7.51 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.55 mm7.51 mm1.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670479108
Side View
Table 61.0%Crown 32.9°Girdle: MediumPavilion 41.1°Culet: NoneDepth 59.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,356 USD|Low: $4,076 USD|High: $8,335 USD|Avg: $5,759 USD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$4,891 USD
Retailer 8$4,970 USD
Retailer 7$5,298 USD
Retailer 3$5,319 USD
Retailer 1$5,356 USD
Retailer 2$5,637 USD
Retailer 5$6,513 USD
Retailer 4$8,236 USD

43 data points across 8 retailers

14 retailers$4,621 USD to $8,862 USD

A
Cheapest Retailer
-
$4,621 USD
B+
Retailer 2
-
$4,891 USD
View
Final sale: no returns
A
Retailer 3
-
$4,970 USD
View
B+
Retailer 4
-
$5,298 USD
View
B+
Retailer 5
-
$5,298 USD
View
B+
Retailer 6
-
$5,298 USD
View
A
Retailer 7
-
$5,319 USD
£4,188 GBP
View
A
Retailer 8
-
$5,356 USD
£4,218 GBP
View
B+
Retailer 9
-
$5,451 USD
View
B+
Retailer 10
-
$5,637 USD
€5,369 EUR
View
B+
Retailer 11
-
$6,114 USD
View
B+
Retailer 12
-
$6,513 USD
ZAR 105,216 ZAR
View
B
Retailer 13
-
$8,236 USD
£6,485 GBP
View
Most Expensive
B
NZ Jewellers
8ae528ce-c06f-4288-b205-db8473f29dd4 · Oct 30
$8,862 USD
View
13 more retailers have this diamond
Prices start from $4,621 USDSave up to $4,241 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.53ct Round
$4,621 USD